There's this cool (dorky) dice game called Dicemasters. There are various versions of it, including but not limited to: various D&D sets, various DC comics sets, various Marvel comics sets, and more. Essentially the idea is, you buy a starter kit (either the starter collector box or a 2 player starter kit) and you collect booster packs to build up your collection from there. The idea is to collect all of a given set. Just look it up, might be right up your alley. Since I'm terrible at describing things, I'd recommend you go check out more info on the WizKids site.